Title:
COMMON MODE NOISE FILTER
Document Type and Number:
WIPO Patent Application WO/2023/190594
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to reduce variation in stress occurring in a common mode noise filter. This common mode noise filter (1) comprises an element body (2), a plurality of conductor layers (3), and a via conductor. An even number of conductor layers (3) among the plurality of conductor layers (3) are spiral layers. A spiral layer (4) has a spiral conductor (41), and at least one via pad (42, 43). The outer edge of the via pad (42) includes an outward-facing portion (RO4). As seen in a vertical direction, the outward-facing portion (RO4) conforms to the shape of an inward-facing portion (RI4) of a corresponding spiral layer (4) among the even number of spiral layers.
More Like This:
| JPH08288141 | THIN FILM SKIN EFFECT ELEMENT |
| JP2023042453 | HIGH FREQUENCY MODULE AND COMMUNICATION DEVICE |
| JPH0636933 | PLANAR TRANSFORMER |
Inventors:
ISHIKAWA YUTO
ISHIDA NARIAKI
FUKUI YOSHIAKI
KAWASHIMA TAKUJI
ISHIDA NARIAKI
FUKUI YOSHIAKI
KAWASHIMA TAKUJI
Application Number:
PCT/JP2023/012660
Publication Date:
October 05, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01F17/00; H01F27/00; H03H7/09
Foreign References:
| JP2014179453A | 2014-09-25 | |||
| JP2015103817A | 2015-06-04 | |||
| JP2017079216A | 2017-04-27 | |||
| JP2019161092A | 2019-09-19 | |||
| JP2018206922A | 2018-12-27 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
Download PDF: